Economic application of powder resin based groundwall insulation for low voltage electric drives

Hofmann B, Kreitlein S, Höcht M, Franke J (2016)

Publication Type: Conference contribution

Publication year: 2016

Publisher: Institute of Electrical and Electronics Engineers Inc.

Book Volume: 2016-December

Pages Range: 303-306

Conference Proceedings Title: Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP

Event location: Toronto, ON CA

ISBN: 9781509046546

DOI: 10.1109/CEIDP.2016.7785548

Abstract

Powder coating already forms an established variant of groundwall insulation although being used almost exclusively for small, flyer-wound rotors mostly due to the lack of economic application and curing processes for larger drives. However, insulation layers based on powder coatings are able to perform significantly better than common aramid-based slot liners. Regarding recent developments in powder application and curing, efficient application methods regarding energy consumption and process time are able to increase yield significantly. Regarding the altering topological characteristics of modern traction drives e.g. for electric vehicles, powder application and achievable results have to be investigated to assess the value of an industrial implementation. Experiments were performed using an electrostatic coating cell and a fixture simulating various characteristics of modern drives including inner diameter, slot width and -depth. These characteristics as well as available process values were analyzed towards the target figure coating thickness using DoE methods. Results predict a valid application of electrostatic powder coating within certain limits for larger traction drives. Package length should not exceed 80 mm and the diameter to package-length ratio has to be lower than 1.0 in order to achieve consistent, repeatable results. Electrostatic Powder Coating can be a valid alternative regarding groundwall insulation for traction drives, although the regarded process is expected to be best-suited for hybrid applications, due to large diameters and small package lengths of electric drives in this field.

Authors with CRIS profile

Benjamin Hofmann Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik Sven Kreitlein Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik Jörg Franke Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik

How to cite

APA:

Hofmann, B., Kreitlein, S., Höcht, M., & Franke, J. (2016). Economic application of powder resin based groundwall insulation for low voltage electric drives. In Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP (pp. 303-306). Toronto, ON, CA: Institute of Electrical and Electronics Engineers Inc..

MLA:

Hofmann, Benjamin, et al. "Economic application of powder resin based groundwall insulation for low voltage electric drives." Proceedings of the 2016 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2016, Toronto, ON Institute of Electrical and Electronics Engineers Inc., 2016. 303-306.

BibTeX: Download